Figure 2
Overlay of two raw images corresponding to the collected photons scattered from 500 \(\upmu\)m-thick PMMA (square) and 250 \(\upmu\)m-thick diamond at room temperature (bright lines) on all three analysers. The squares show the focused images of each analyser on the detector and were obtained using the non-monochromatised X-ray beam. The brighter regions correspond to the raw data collected on room temperature diamond and was obtained using the monochromatised X-ray beam. The vertical direction on the image corresponds to the energy dispersive direction. One can observe on each square a bright band corresponding to the Stokes line (arrow 1) and a dimmer band under it corresponding to the anti-Stokes line (arrow 2). The horizontal white dashed lines represent the boundaries of the image of the analysers on the ePIX100 detector and correspond to the vertical dark dashed lines in Fig. 3. It should be mentioned that the intensity tails outside the white dashed lines, and clearly visible in the intensity fall off beyond the vertical dashed lines in Fig. 3, are most likely caused by defocusing effects.
